I don't think so:
- It only eliminates the dialog's you get when you want to temporarily edit something differently in UR. It doesn't help for eliminating any dialogs you get when editing / adding i.e. 1 row in 5 different Excel documents subsequently.
- In my opinion alt-tabbing between the applications isn't much better than getting a few extra dialog's on focus loss. I've already managed to accidentally open multiple documents externally at the same time. UR doesn't seem to handle that very well
.